./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-counter-determinism.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-counter-determinism.wvr.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1dad5daa490be7069cef5ea8bf1cf3314a40a44a4796167c86226f70cfcf68a2 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 19:56:57,860 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 19:56:57,933 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-11 19:56:57,938 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 19:56:57,939 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 19:56:57,969 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 19:56:57,970 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 19:56:57,971 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 19:56:57,971 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 19:56:57,972 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 19:56:57,973 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 19:56:57,974 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 19:56:57,974 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 19:56:57,974 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 19:56:57,975 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 19:56:57,975 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 19:56:57,975 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 19:56:57,976 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 19:56:57,976 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 19:56:57,980 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 19:56:57,980 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-11 19:56:57,981 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-11 19:56:57,982 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-11 19:56:57,982 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 19:56:57,982 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 19:56:57,982 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 19:56:57,982 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 19:56:57,983 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 19:56:57,983 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 19:56:57,983 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 19:56:57,983 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 19:56:57,983 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 19:56:57,984 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 19:56:57,984 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:56:57,984 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 19:56:57,991 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 19:56:57,992 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 19:56:57,992 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 19:56:57,993 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 19:56:57,993 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 19:56:57,993 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 19:56:57,994 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 19:56:57,994 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1dad5daa490be7069cef5ea8bf1cf3314a40a44a4796167c86226f70cfcf68a2 [2024-10-11 19:56:58,239 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 19:56:58,266 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 19:56:58,269 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 19:56:58,270 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 19:56:58,271 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 19:56:58,272 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-counter-determinism.wvr.c [2024-10-11 19:56:59,741 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 19:56:59,922 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 19:56:59,922 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-counter-determinism.wvr.c [2024-10-11 19:56:59,929 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/ba0fc06d0/89a924844f1343d585c2679e566fd568/FLAGc0de43077 [2024-10-11 19:56:59,942 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/ba0fc06d0/89a924844f1343d585c2679e566fd568 [2024-10-11 19:56:59,945 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 19:56:59,946 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 19:56:59,948 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 19:56:59,948 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 19:56:59,953 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 19:56:59,954 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:56:59" (1/1) ... [2024-10-11 19:56:59,955 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b8ba5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:56:59, skipping insertion in model container [2024-10-11 19:56:59,957 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:56:59" (1/1) ... [2024-10-11 19:56:59,981 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 19:57:00,187 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:57:00,197 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 19:57:00,227 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:57:00,246 INFO L204 MainTranslator]: Completed translation [2024-10-11 19:57:00,247 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:57:00 WrapperNode [2024-10-11 19:57:00,247 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 19:57:00,249 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 19:57:00,249 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 19:57:00,249 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 19:57:00,256 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:57:00" (1/1) ... [2024-10-11 19:57:00,265 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:57:00" (1/1) ... [2024-10-11 19:57:00,291 INFO L138 Inliner]: procedures = 22, calls = 22, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 98 [2024-10-11 19:57:00,294 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 19:57:00,294 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 19:57:00,294 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 19:57:00,295 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 19:57:00,307 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:57:00" (1/1) ... [2024-10-11 19:57:00,307 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:57:00" (1/1) ... [2024-10-11 19:57:00,310 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:57:00" (1/1) ... [2024-10-11 19:57:00,327 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-11 19:57:00,330 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:57:00" (1/1) ... [2024-10-11 19:57:00,331 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:57:00" (1/1) ... [2024-10-11 19:57:00,335 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:57:00" (1/1) ... [2024-10-11 19:57:00,343 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:57:00" (1/1) ... [2024-10-11 19:57:00,345 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:57:00" (1/1) ... [2024-10-11 19:57:00,347 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:57:00" (1/1) ... [2024-10-11 19:57:00,350 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 19:57:00,353 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 19:57:00,353 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 19:57:00,354 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 19:57:00,354 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:57:00" (1/1) ... [2024-10-11 19:57:00,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:57:00,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 19:57:00,391 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 19:57:00,397 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 19:57:00,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 19:57:00,446 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-11 19:57:00,446 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-11 19:57:00,446 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-11 19:57:00,446 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-11 19:57:00,447 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-11 19:57:00,447 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-11 19:57:00,447 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-10-11 19:57:00,447 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-10-11 19:57:00,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 19:57:00,447 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-11 19:57:00,449 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-11 19:57:00,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 19:57:00,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 19:57:00,452 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 19:57:00,575 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 19:57:00,577 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 19:57:00,773 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 19:57:00,774 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 19:57:00,902 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 19:57:00,902 INFO L314 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-11 19:57:00,903 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:57:00 BoogieIcfgContainer [2024-10-11 19:57:00,903 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 19:57:00,905 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 19:57:00,905 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 19:57:00,908 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 19:57:00,908 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 07:56:59" (1/3) ... [2024-10-11 19:57:00,909 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ddeccb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:57:00, skipping insertion in model container [2024-10-11 19:57:00,909 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:57:00" (2/3) ... [2024-10-11 19:57:00,909 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ddeccb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:57:00, skipping insertion in model container [2024-10-11 19:57:00,909 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:57:00" (3/3) ... [2024-10-11 19:57:00,910 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-counter-determinism.wvr.c [2024-10-11 19:57:00,923 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 19:57:00,923 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-11 19:57:00,923 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 19:57:01,000 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-10-11 19:57:01,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 42 transitions, 112 flow [2024-10-11 19:57:01,061 INFO L124 PetriNetUnfolderBase]: 4/38 cut-off events. [2024-10-11 19:57:01,061 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-11 19:57:01,064 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55 conditions, 38 events. 4/38 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 48 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 33. Up to 2 conditions per place. [2024-10-11 19:57:01,065 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 42 transitions, 112 flow [2024-10-11 19:57:01,069 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 46 places, 37 transitions, 98 flow [2024-10-11 19:57:01,078 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 19:57:01,084 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5ba370e5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 19:57:01,084 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-10-11 19:57:01,104 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 19:57:01,105 INFO L124 PetriNetUnfolderBase]: 4/34 cut-off events. [2024-10-11 19:57:01,105 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-11 19:57:01,106 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:57:01,107 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:57:01,108 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-11 19:57:01,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:57:01,113 INFO L85 PathProgramCache]: Analyzing trace with hash -2140579173, now seen corresponding path program 1 times [2024-10-11 19:57:01,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:57:01,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115080290] [2024-10-11 19:57:01,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:57:01,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:57:01,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:57:01,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:57:01,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:57:01,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115080290] [2024-10-11 19:57:01,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115080290] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:57:01,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:57:01,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 19:57:01,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743989902] [2024-10-11 19:57:01,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:57:01,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:57:01,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:57:01,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:57:01,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:57:01,658 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-10-11 19:57:01,660 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 37 transitions, 98 flow. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:57:01,660 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:57:01,660 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-10-11 19:57:01,662 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:57:02,202 INFO L124 PetriNetUnfolderBase]: 3331/4539 cut-off events. [2024-10-11 19:57:02,203 INFO L125 PetriNetUnfolderBase]: For 339/339 co-relation queries the response was YES. [2024-10-11 19:57:02,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9282 conditions, 4539 events. 3331/4539 cut-off events. For 339/339 co-relation queries the response was YES. Maximal size of possible extension queue 249. Compared 19515 event pairs, 587 based on Foata normal form. 2/4501 useless extension candidates. Maximal degree in co-relation 8232. Up to 3534 conditions per place. [2024-10-11 19:57:02,242 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 47 selfloop transitions, 5 changer transitions 1/58 dead transitions. [2024-10-11 19:57:02,243 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 58 transitions, 267 flow [2024-10-11 19:57:02,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:57:02,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 19:57:02,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 85 transitions. [2024-10-11 19:57:02,256 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6746031746031746 [2024-10-11 19:57:02,257 INFO L175 Difference]: Start difference. First operand has 46 places, 37 transitions, 98 flow. Second operand 3 states and 85 transitions. [2024-10-11 19:57:02,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 58 transitions, 267 flow [2024-10-11 19:57:02,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 58 transitions, 237 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-10-11 19:57:02,274 INFO L231 Difference]: Finished difference. Result has 39 places, 39 transitions, 111 flow [2024-10-11 19:57:02,276 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=111, PETRI_PLACES=39, PETRI_TRANSITIONS=39} [2024-10-11 19:57:02,281 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, -7 predicate places. [2024-10-11 19:57:02,281 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 39 transitions, 111 flow [2024-10-11 19:57:02,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:57:02,282 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:57:02,283 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:57:02,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 19:57:02,284 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-11 19:57:02,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:57:02,285 INFO L85 PathProgramCache]: Analyzing trace with hash -1836222906, now seen corresponding path program 1 times [2024-10-11 19:57:02,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:57:02,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551586146] [2024-10-11 19:57:02,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:57:02,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:57:02,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:57:02,449 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:57:02,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:57:02,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551586146] [2024-10-11 19:57:02,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551586146] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:57:02,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:57:02,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:57:02,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472348564] [2024-10-11 19:57:02,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:57:02,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:57:02,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:57:02,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:57:02,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:57:02,468 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2024-10-11 19:57:02,469 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 39 transitions, 111 flow. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:57:02,469 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:57:02,469 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2024-10-11 19:57:02,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:57:03,305 INFO L124 PetriNetUnfolderBase]: 7596/10236 cut-off events. [2024-10-11 19:57:03,305 INFO L125 PetriNetUnfolderBase]: For 1690/1710 co-relation queries the response was YES. [2024-10-11 19:57:03,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23127 conditions, 10236 events. 7596/10236 cut-off events. For 1690/1710 co-relation queries the response was YES. Maximal size of possible extension queue 525. Compared 51286 event pairs, 2232 based on Foata normal form. 0/9595 useless extension candidates. Maximal degree in co-relation 3482. Up to 5148 conditions per place. [2024-10-11 19:57:03,383 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 94 selfloop transitions, 10 changer transitions 0/108 dead transitions. [2024-10-11 19:57:03,383 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 108 transitions, 516 flow [2024-10-11 19:57:03,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 19:57:03,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 19:57:03,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 136 transitions. [2024-10-11 19:57:03,386 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6476190476190476 [2024-10-11 19:57:03,386 INFO L175 Difference]: Start difference. First operand has 39 places, 39 transitions, 111 flow. Second operand 5 states and 136 transitions. [2024-10-11 19:57:03,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 108 transitions, 516 flow [2024-10-11 19:57:03,389 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 108 transitions, 501 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 19:57:03,391 INFO L231 Difference]: Finished difference. Result has 45 places, 48 transitions, 169 flow [2024-10-11 19:57:03,391 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=169, PETRI_PLACES=45, PETRI_TRANSITIONS=48} [2024-10-11 19:57:03,392 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, -1 predicate places. [2024-10-11 19:57:03,393 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 48 transitions, 169 flow [2024-10-11 19:57:03,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:57:03,393 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:57:03,393 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:57:03,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 19:57:03,394 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-11 19:57:03,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:57:03,395 INFO L85 PathProgramCache]: Analyzing trace with hash -390742830, now seen corresponding path program 2 times [2024-10-11 19:57:03,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:57:03,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442830227] [2024-10-11 19:57:03,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:57:03,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:57:03,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:57:03,520 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:57:03,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:57:03,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442830227] [2024-10-11 19:57:03,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442830227] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:57:03,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:57:03,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 19:57:03,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720333386] [2024-10-11 19:57:03,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:57:03,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:57:03,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:57:03,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:57:03,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:57:03,547 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2024-10-11 19:57:03,548 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 48 transitions, 169 flow. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:57:03,548 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:57:03,548 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2024-10-11 19:57:03,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:57:04,701 INFO L124 PetriNetUnfolderBase]: 10046/13547 cut-off events. [2024-10-11 19:57:04,701 INFO L125 PetriNetUnfolderBase]: For 5610/5610 co-relation queries the response was YES. [2024-10-11 19:57:04,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35581 conditions, 13547 events. 10046/13547 cut-off events. For 5610/5610 co-relation queries the response was YES. Maximal size of possible extension queue 664. Compared 71739 event pairs, 1271 based on Foata normal form. 288/13781 useless extension candidates. Maximal degree in co-relation 17053. Up to 3538 conditions per place. [2024-10-11 19:57:04,784 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 143 selfloop transitions, 13 changer transitions 0/160 dead transitions. [2024-10-11 19:57:04,784 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 160 transitions, 824 flow [2024-10-11 19:57:04,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 19:57:04,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-11 19:57:04,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 199 transitions. [2024-10-11 19:57:04,788 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6768707482993197 [2024-10-11 19:57:04,788 INFO L175 Difference]: Start difference. First operand has 45 places, 48 transitions, 169 flow. Second operand 7 states and 199 transitions. [2024-10-11 19:57:04,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 160 transitions, 824 flow [2024-10-11 19:57:04,803 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 160 transitions, 824 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 19:57:04,805 INFO L231 Difference]: Finished difference. Result has 56 places, 54 transitions, 260 flow [2024-10-11 19:57:04,806 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=169, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=260, PETRI_PLACES=56, PETRI_TRANSITIONS=54} [2024-10-11 19:57:04,807 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 10 predicate places. [2024-10-11 19:57:04,808 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 54 transitions, 260 flow [2024-10-11 19:57:04,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:57:04,808 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:57:04,808 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:57:04,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 19:57:04,809 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-11 19:57:04,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:57:04,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1651199283, now seen corresponding path program 1 times [2024-10-11 19:57:04,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:57:04,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203367547] [2024-10-11 19:57:04,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:57:04,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:57:04,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:57:04,877 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:57:04,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:57:04,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203367547] [2024-10-11 19:57:04,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203367547] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:57:04,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:57:04,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 19:57:04,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171169329] [2024-10-11 19:57:04,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:57:04,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:57:04,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:57:04,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:57:04,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:57:04,881 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-10-11 19:57:04,881 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 54 transitions, 260 flow. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:57:04,881 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:57:04,881 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-10-11 19:57:04,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:57:05,803 INFO L124 PetriNetUnfolderBase]: 6884/9421 cut-off events. [2024-10-11 19:57:05,803 INFO L125 PetriNetUnfolderBase]: For 12748/12781 co-relation queries the response was YES. [2024-10-11 19:57:05,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28418 conditions, 9421 events. 6884/9421 cut-off events. For 12748/12781 co-relation queries the response was YES. Maximal size of possible extension queue 502. Compared 47481 event pairs, 2587 based on Foata normal form. 352/9647 useless extension candidates. Maximal degree in co-relation 19593. Up to 5747 conditions per place. [2024-10-11 19:57:05,860 INFO L140 encePairwiseOnDemand]: 39/42 looper letters, 68 selfloop transitions, 3 changer transitions 0/77 dead transitions. [2024-10-11 19:57:05,860 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 77 transitions, 479 flow [2024-10-11 19:57:05,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:57:05,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 19:57:05,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 85 transitions. [2024-10-11 19:57:05,862 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6746031746031746 [2024-10-11 19:57:05,862 INFO L175 Difference]: Start difference. First operand has 56 places, 54 transitions, 260 flow. Second operand 3 states and 85 transitions. [2024-10-11 19:57:05,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 77 transitions, 479 flow [2024-10-11 19:57:05,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 77 transitions, 471 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-11 19:57:05,882 INFO L231 Difference]: Finished difference. Result has 58 places, 54 transitions, 265 flow [2024-10-11 19:57:05,882 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=265, PETRI_PLACES=58, PETRI_TRANSITIONS=54} [2024-10-11 19:57:05,883 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 12 predicate places. [2024-10-11 19:57:05,883 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 54 transitions, 265 flow [2024-10-11 19:57:05,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:57:05,884 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:57:05,884 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:57:05,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 19:57:05,884 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-11 19:57:05,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:57:05,885 INFO L85 PathProgramCache]: Analyzing trace with hash 690774702, now seen corresponding path program 3 times [2024-10-11 19:57:05,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:57:05,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837502543] [2024-10-11 19:57:05,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:57:05,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:57:05,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:57:06,063 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:57:06,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:57:06,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837502543] [2024-10-11 19:57:06,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837502543] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:57:06,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:57:06,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:57:06,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882781402] [2024-10-11 19:57:06,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:57:06,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:57:06,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:57:06,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:57:06,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:57:06,080 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2024-10-11 19:57:06,081 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 54 transitions, 265 flow. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:57:06,081 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:57:06,081 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2024-10-11 19:57:06,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:57:07,242 INFO L124 PetriNetUnfolderBase]: 10486/14554 cut-off events. [2024-10-11 19:57:07,242 INFO L125 PetriNetUnfolderBase]: For 18368/18368 co-relation queries the response was YES. [2024-10-11 19:57:07,288 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44079 conditions, 14554 events. 10486/14554 cut-off events. For 18368/18368 co-relation queries the response was YES. Maximal size of possible extension queue 688. Compared 80590 event pairs, 3654 based on Foata normal form. 62/14457 useless extension candidates. Maximal degree in co-relation 31662. Up to 7316 conditions per place. [2024-10-11 19:57:07,365 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 102 selfloop transitions, 17 changer transitions 0/123 dead transitions. [2024-10-11 19:57:07,365 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 123 transitions, 779 flow [2024-10-11 19:57:07,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 19:57:07,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 19:57:07,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 135 transitions. [2024-10-11 19:57:07,367 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6428571428571429 [2024-10-11 19:57:07,367 INFO L175 Difference]: Start difference. First operand has 58 places, 54 transitions, 265 flow. Second operand 5 states and 135 transitions. [2024-10-11 19:57:07,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 123 transitions, 779 flow [2024-10-11 19:57:07,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 123 transitions, 770 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 19:57:07,444 INFO L231 Difference]: Finished difference. Result has 63 places, 63 transitions, 387 flow [2024-10-11 19:57:07,445 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=387, PETRI_PLACES=63, PETRI_TRANSITIONS=63} [2024-10-11 19:57:07,445 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 17 predicate places. [2024-10-11 19:57:07,446 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 63 transitions, 387 flow [2024-10-11 19:57:07,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:57:07,446 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:57:07,446 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:57:07,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 19:57:07,447 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-11 19:57:07,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:57:07,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1007817930, now seen corresponding path program 4 times [2024-10-11 19:57:07,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:57:07,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720244069] [2024-10-11 19:57:07,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:57:07,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:57:07,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:57:07,528 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:57:07,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:57:07,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720244069] [2024-10-11 19:57:07,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720244069] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:57:07,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:57:07,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:57:07,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366604295] [2024-10-11 19:57:07,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:57:07,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:57:07,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:57:07,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:57:07,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:57:07,556 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2024-10-11 19:57:07,556 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 63 transitions, 387 flow. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:57:07,557 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:57:07,557 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2024-10-11 19:57:07,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:57:08,823 INFO L124 PetriNetUnfolderBase]: 10738/14836 cut-off events. [2024-10-11 19:57:08,823 INFO L125 PetriNetUnfolderBase]: For 28207/28222 co-relation queries the response was YES. [2024-10-11 19:57:08,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48482 conditions, 14836 events. 10738/14836 cut-off events. For 28207/28222 co-relation queries the response was YES. Maximal size of possible extension queue 653. Compared 82348 event pairs, 2921 based on Foata normal form. 62/14797 useless extension candidates. Maximal degree in co-relation 32869. Up to 5854 conditions per place. [2024-10-11 19:57:08,918 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 112 selfloop transitions, 14 changer transitions 0/130 dead transitions. [2024-10-11 19:57:08,918 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 130 transitions, 876 flow [2024-10-11 19:57:08,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 19:57:08,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 19:57:08,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 136 transitions. [2024-10-11 19:57:08,919 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6476190476190476 [2024-10-11 19:57:08,919 INFO L175 Difference]: Start difference. First operand has 63 places, 63 transitions, 387 flow. Second operand 5 states and 136 transitions. [2024-10-11 19:57:08,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 130 transitions, 876 flow [2024-10-11 19:57:09,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 130 transitions, 860 flow, removed 8 selfloop flow, removed 0 redundant places. [2024-10-11 19:57:09,068 INFO L231 Difference]: Finished difference. Result has 69 places, 65 transitions, 430 flow [2024-10-11 19:57:09,069 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=371, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=430, PETRI_PLACES=69, PETRI_TRANSITIONS=65} [2024-10-11 19:57:09,070 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 23 predicate places. [2024-10-11 19:57:09,071 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 65 transitions, 430 flow [2024-10-11 19:57:09,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:57:09,071 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:57:09,071 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:57:09,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 19:57:09,072 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-11 19:57:09,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:57:09,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1432086148, now seen corresponding path program 1 times [2024-10-11 19:57:09,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:57:09,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808504791] [2024-10-11 19:57:09,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:57:09,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:57:09,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:57:09,157 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:57:09,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:57:09,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808504791] [2024-10-11 19:57:09,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808504791] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:57:09,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:57:09,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:57:09,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506388109] [2024-10-11 19:57:09,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:57:09,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:57:09,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:57:09,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:57:09,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:57:09,169 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2024-10-11 19:57:09,169 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 65 transitions, 430 flow. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:57:09,169 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:57:09,170 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2024-10-11 19:57:09,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:57:10,404 INFO L124 PetriNetUnfolderBase]: 11529/15991 cut-off events. [2024-10-11 19:57:10,405 INFO L125 PetriNetUnfolderBase]: For 41791/41815 co-relation queries the response was YES. [2024-10-11 19:57:10,450 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53989 conditions, 15991 events. 11529/15991 cut-off events. For 41791/41815 co-relation queries the response was YES. Maximal size of possible extension queue 720. Compared 90339 event pairs, 3652 based on Foata normal form. 3/15076 useless extension candidates. Maximal degree in co-relation 38705. Up to 8332 conditions per place. [2024-10-11 19:57:10,510 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 102 selfloop transitions, 17 changer transitions 0/124 dead transitions. [2024-10-11 19:57:10,511 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 124 transitions, 867 flow [2024-10-11 19:57:10,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 19:57:10,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 19:57:10,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 135 transitions. [2024-10-11 19:57:10,512 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6428571428571429 [2024-10-11 19:57:10,512 INFO L175 Difference]: Start difference. First operand has 69 places, 65 transitions, 430 flow. Second operand 5 states and 135 transitions. [2024-10-11 19:57:10,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 124 transitions, 867 flow [2024-10-11 19:57:10,689 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 124 transitions, 836 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-10-11 19:57:10,690 INFO L231 Difference]: Finished difference. Result has 73 places, 67 transitions, 459 flow [2024-10-11 19:57:10,691 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=405, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=459, PETRI_PLACES=73, PETRI_TRANSITIONS=67} [2024-10-11 19:57:10,692 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 27 predicate places. [2024-10-11 19:57:10,693 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 67 transitions, 459 flow [2024-10-11 19:57:10,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:57:10,693 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:57:10,693 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:57:10,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 19:57:10,694 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-11 19:57:10,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:57:10,694 INFO L85 PathProgramCache]: Analyzing trace with hash 417654524, now seen corresponding path program 5 times [2024-10-11 19:57:10,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:57:10,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406045539] [2024-10-11 19:57:10,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:57:10,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:57:10,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:57:10,789 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:57:10,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:57:10,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406045539] [2024-10-11 19:57:10,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406045539] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:57:10,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:57:10,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 19:57:10,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063857568] [2024-10-11 19:57:10,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:57:10,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:57:10,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:57:10,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:57:10,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:57:10,803 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-10-11 19:57:10,804 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 67 transitions, 459 flow. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:57:10,804 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:57:10,804 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-10-11 19:57:10,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:57:12,440 INFO L124 PetriNetUnfolderBase]: 17542/23407 cut-off events. [2024-10-11 19:57:12,441 INFO L125 PetriNetUnfolderBase]: For 49449/50646 co-relation queries the response was YES. [2024-10-11 19:57:12,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76943 conditions, 23407 events. 17542/23407 cut-off events. For 49449/50646 co-relation queries the response was YES. Maximal size of possible extension queue 933. Compared 125879 event pairs, 5981 based on Foata normal form. 350/23582 useless extension candidates. Maximal degree in co-relation 63162. Up to 13144 conditions per place. [2024-10-11 19:57:12,577 INFO L140 encePairwiseOnDemand]: 34/42 looper letters, 122 selfloop transitions, 24 changer transitions 0/149 dead transitions. [2024-10-11 19:57:12,577 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 149 transitions, 1047 flow [2024-10-11 19:57:12,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 19:57:12,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 19:57:12,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 166 transitions. [2024-10-11 19:57:12,579 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6587301587301587 [2024-10-11 19:57:12,579 INFO L175 Difference]: Start difference. First operand has 73 places, 67 transitions, 459 flow. Second operand 6 states and 166 transitions. [2024-10-11 19:57:12,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 149 transitions, 1047 flow [2024-10-11 19:57:12,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 149 transitions, 1019 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-10-11 19:57:12,868 INFO L231 Difference]: Finished difference. Result has 78 places, 71 transitions, 534 flow [2024-10-11 19:57:12,868 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=424, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=534, PETRI_PLACES=78, PETRI_TRANSITIONS=71} [2024-10-11 19:57:12,869 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 32 predicate places. [2024-10-11 19:57:12,869 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 71 transitions, 534 flow [2024-10-11 19:57:12,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:57:12,870 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:57:12,870 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:57:12,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 19:57:12,870 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-11 19:57:12,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:57:12,871 INFO L85 PathProgramCache]: Analyzing trace with hash -424754774, now seen corresponding path program 2 times [2024-10-11 19:57:12,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:57:12,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910177872] [2024-10-11 19:57:12,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:57:12,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:57:12,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:57:12,955 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:57:12,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:57:12,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910177872] [2024-10-11 19:57:12,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910177872] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:57:12,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:57:12,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:57:12,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993655490] [2024-10-11 19:57:12,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:57:12,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:57:12,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:57:12,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:57:12,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:57:12,964 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-10-11 19:57:12,965 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 71 transitions, 534 flow. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:57:12,965 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:57:12,965 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-10-11 19:57:12,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:57:15,680 INFO L124 PetriNetUnfolderBase]: 31599/41799 cut-off events. [2024-10-11 19:57:15,680 INFO L125 PetriNetUnfolderBase]: For 125254/125260 co-relation queries the response was YES. [2024-10-11 19:57:15,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149119 conditions, 41799 events. 31599/41799 cut-off events. For 125254/125260 co-relation queries the response was YES. Maximal size of possible extension queue 1480. Compared 233137 event pairs, 11974 based on Foata normal form. 144/39382 useless extension candidates. Maximal degree in co-relation 106019. Up to 24024 conditions per place. [2024-10-11 19:57:16,028 INFO L140 encePairwiseOnDemand]: 34/42 looper letters, 151 selfloop transitions, 26 changer transitions 0/181 dead transitions. [2024-10-11 19:57:16,028 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 181 transitions, 1798 flow [2024-10-11 19:57:16,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 19:57:16,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 19:57:16,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 128 transitions. [2024-10-11 19:57:16,030 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6095238095238096 [2024-10-11 19:57:16,030 INFO L175 Difference]: Start difference. First operand has 78 places, 71 transitions, 534 flow. Second operand 5 states and 128 transitions. [2024-10-11 19:57:16,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 181 transitions, 1798 flow [2024-10-11 19:57:16,650 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 181 transitions, 1654 flow, removed 14 selfloop flow, removed 3 redundant places. [2024-10-11 19:57:16,652 INFO L231 Difference]: Finished difference. Result has 82 places, 94 transitions, 843 flow [2024-10-11 19:57:16,653 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=486, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=843, PETRI_PLACES=82, PETRI_TRANSITIONS=94} [2024-10-11 19:57:16,653 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 36 predicate places. [2024-10-11 19:57:16,653 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 94 transitions, 843 flow [2024-10-11 19:57:16,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:57:16,654 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:57:16,654 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:57:16,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 19:57:16,654 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-11 19:57:16,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:57:16,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1109458108, now seen corresponding path program 3 times [2024-10-11 19:57:16,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:57:16,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289153931] [2024-10-11 19:57:16,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:57:16,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:57:16,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:57:16,735 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:57:16,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:57:16,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289153931] [2024-10-11 19:57:16,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289153931] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:57:16,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:57:16,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 19:57:16,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066136912] [2024-10-11 19:57:16,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:57:16,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:57:16,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:57:16,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:57:16,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:57:16,758 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-10-11 19:57:16,759 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 94 transitions, 843 flow. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:57:16,759 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:57:16,759 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-10-11 19:57:16,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:57:19,705 INFO L124 PetriNetUnfolderBase]: 31814/42420 cut-off events. [2024-10-11 19:57:19,705 INFO L125 PetriNetUnfolderBase]: For 140453/140519 co-relation queries the response was YES. [2024-10-11 19:57:19,860 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161854 conditions, 42420 events. 31814/42420 cut-off events. For 140453/140519 co-relation queries the response was YES. Maximal size of possible extension queue 1547. Compared 242114 event pairs, 12130 based on Foata normal form. 617/42572 useless extension candidates. Maximal degree in co-relation 116610. Up to 28668 conditions per place. [2024-10-11 19:57:20,386 INFO L140 encePairwiseOnDemand]: 34/42 looper letters, 133 selfloop transitions, 53 changer transitions 2/192 dead transitions. [2024-10-11 19:57:20,387 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 192 transitions, 1856 flow [2024-10-11 19:57:20,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 19:57:20,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 19:57:20,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 156 transitions. [2024-10-11 19:57:20,388 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6190476190476191 [2024-10-11 19:57:20,388 INFO L175 Difference]: Start difference. First operand has 82 places, 94 transitions, 843 flow. Second operand 6 states and 156 transitions. [2024-10-11 19:57:20,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 192 transitions, 1856 flow [2024-10-11 19:57:20,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 192 transitions, 1852 flow, removed 2 selfloop flow, removed 0 redundant places. [2024-10-11 19:57:20,996 INFO L231 Difference]: Finished difference. Result has 90 places, 115 transitions, 1267 flow [2024-10-11 19:57:20,996 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=839, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1267, PETRI_PLACES=90, PETRI_TRANSITIONS=115} [2024-10-11 19:57:20,997 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 44 predicate places. [2024-10-11 19:57:20,997 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 115 transitions, 1267 flow [2024-10-11 19:57:20,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:57:20,998 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:57:20,998 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:57:20,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 19:57:20,998 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-11 19:57:20,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:57:20,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1890250683, now seen corresponding path program 1 times [2024-10-11 19:57:20,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:57:20,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415240331] [2024-10-11 19:57:20,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:57:20,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:57:21,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:57:21,032 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:57:21,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:57:21,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415240331] [2024-10-11 19:57:21,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415240331] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:57:21,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:57:21,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 19:57:21,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074269006] [2024-10-11 19:57:21,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:57:21,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:57:21,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:57:21,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:57:21,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:57:21,035 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-10-11 19:57:21,035 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 115 transitions, 1267 flow. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:57:21,035 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:57:21,035 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-10-11 19:57:21,035 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:57:23,078 INFO L124 PetriNetUnfolderBase]: 20027/28056 cut-off events. [2024-10-11 19:57:23,078 INFO L125 PetriNetUnfolderBase]: For 119384/120792 co-relation queries the response was YES. [2024-10-11 19:57:23,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112596 conditions, 28056 events. 20027/28056 cut-off events. For 119384/120792 co-relation queries the response was YES. Maximal size of possible extension queue 1186. Compared 169706 event pairs, 5259 based on Foata normal form. 571/28257 useless extension candidates. Maximal degree in co-relation 79211. Up to 17135 conditions per place. [2024-10-11 19:57:23,310 INFO L140 encePairwiseOnDemand]: 39/42 looper letters, 154 selfloop transitions, 3 changer transitions 8/181 dead transitions. [2024-10-11 19:57:23,310 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 181 transitions, 2413 flow [2024-10-11 19:57:23,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:57:23,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 19:57:23,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 81 transitions. [2024-10-11 19:57:23,312 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6428571428571429 [2024-10-11 19:57:23,312 INFO L175 Difference]: Start difference. First operand has 90 places, 115 transitions, 1267 flow. Second operand 3 states and 81 transitions. [2024-10-11 19:57:23,312 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 181 transitions, 2413 flow [2024-10-11 19:57:23,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 181 transitions, 2351 flow, removed 31 selfloop flow, removed 0 redundant places. [2024-10-11 19:57:23,609 INFO L231 Difference]: Finished difference. Result has 93 places, 113 transitions, 1212 flow [2024-10-11 19:57:23,609 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=1213, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1212, PETRI_PLACES=93, PETRI_TRANSITIONS=113} [2024-10-11 19:57:23,610 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 47 predicate places. [2024-10-11 19:57:23,610 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 113 transitions, 1212 flow [2024-10-11 19:57:23,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:57:23,610 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:57:23,610 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:57:23,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 19:57:23,611 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-11 19:57:23,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:57:23,611 INFO L85 PathProgramCache]: Analyzing trace with hash 428578340, now seen corresponding path program 4 times [2024-10-11 19:57:23,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:57:23,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253487155] [2024-10-11 19:57:23,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:57:23,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:57:23,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:57:23,690 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:57:23,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:57:23,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253487155] [2024-10-11 19:57:23,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253487155] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:57:23,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:57:23,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:57:23,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456463725] [2024-10-11 19:57:23,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:57:23,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:57:23,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:57:23,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:57:23,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:57:23,702 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2024-10-11 19:57:23,703 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 113 transitions, 1212 flow. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:57:23,703 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:57:23,703 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2024-10-11 19:57:23,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:57:26,464 INFO L124 PetriNetUnfolderBase]: 23677/32378 cut-off events. [2024-10-11 19:57:26,465 INFO L125 PetriNetUnfolderBase]: For 130692/130819 co-relation queries the response was YES. [2024-10-11 19:57:26,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136205 conditions, 32378 events. 23677/32378 cut-off events. For 130692/130819 co-relation queries the response was YES. Maximal size of possible extension queue 1231. Compared 190101 event pairs, 10127 based on Foata normal form. 39/32270 useless extension candidates. Maximal degree in co-relation 97408. Up to 21715 conditions per place. [2024-10-11 19:57:26,691 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 95 selfloop transitions, 40 changer transitions 17/165 dead transitions. [2024-10-11 19:57:26,692 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 165 transitions, 1789 flow [2024-10-11 19:57:26,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 19:57:26,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 19:57:26,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 128 transitions. [2024-10-11 19:57:26,693 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6095238095238096 [2024-10-11 19:57:26,693 INFO L175 Difference]: Start difference. First operand has 93 places, 113 transitions, 1212 flow. Second operand 5 states and 128 transitions. [2024-10-11 19:57:26,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 165 transitions, 1789 flow [2024-10-11 19:57:27,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 165 transitions, 1768 flow, removed 7 selfloop flow, removed 2 redundant places. [2024-10-11 19:57:27,342 INFO L231 Difference]: Finished difference. Result has 95 places, 107 transitions, 1200 flow [2024-10-11 19:57:27,342 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=1203, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1200, PETRI_PLACES=95, PETRI_TRANSITIONS=107} [2024-10-11 19:57:27,343 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 49 predicate places. [2024-10-11 19:57:27,343 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 107 transitions, 1200 flow [2024-10-11 19:57:27,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:57:27,343 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:57:27,343 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:57:27,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 19:57:27,343 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-11 19:57:27,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:57:27,344 INFO L85 PathProgramCache]: Analyzing trace with hash 501713780, now seen corresponding path program 5 times [2024-10-11 19:57:27,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:57:27,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077676440] [2024-10-11 19:57:27,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:57:27,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:57:27,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:57:27,403 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:57:27,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:57:27,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077676440] [2024-10-11 19:57:27,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077676440] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:57:27,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:57:27,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:57:27,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345736101] [2024-10-11 19:57:27,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:57:27,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:57:27,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:57:27,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:57:27,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:57:27,422 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2024-10-11 19:57:27,422 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 107 transitions, 1200 flow. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:57:27,422 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:57:27,422 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2024-10-11 19:57:27,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:57:30,705 INFO L124 PetriNetUnfolderBase]: 25799/35375 cut-off events. [2024-10-11 19:57:30,705 INFO L125 PetriNetUnfolderBase]: For 163661/164022 co-relation queries the response was YES. [2024-10-11 19:57:30,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147566 conditions, 35375 events. 25799/35375 cut-off events. For 163661/164022 co-relation queries the response was YES. Maximal size of possible extension queue 1395. Compared 214811 event pairs, 9327 based on Foata normal form. 474/35556 useless extension candidates. Maximal degree in co-relation 105721. Up to 21202 conditions per place. [2024-10-11 19:57:30,924 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 210 selfloop transitions, 19 changer transitions 0/242 dead transitions. [2024-10-11 19:57:30,924 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 242 transitions, 3109 flow [2024-10-11 19:57:30,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 19:57:30,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 19:57:30,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 128 transitions. [2024-10-11 19:57:30,925 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6095238095238096 [2024-10-11 19:57:30,925 INFO L175 Difference]: Start difference. First operand has 95 places, 107 transitions, 1200 flow. Second operand 5 states and 128 transitions. [2024-10-11 19:57:30,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 242 transitions, 3109 flow [2024-10-11 19:57:31,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 242 transitions, 2937 flow, removed 3 selfloop flow, removed 4 redundant places. [2024-10-11 19:57:31,445 INFO L231 Difference]: Finished difference. Result has 97 places, 114 transitions, 1221 flow [2024-10-11 19:57:31,445 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=1116, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1221, PETRI_PLACES=97, PETRI_TRANSITIONS=114} [2024-10-11 19:57:31,446 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 51 predicate places. [2024-10-11 19:57:31,446 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 114 transitions, 1221 flow [2024-10-11 19:57:31,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:57:31,446 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:57:31,446 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:57:31,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-11 19:57:31,447 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-11 19:57:31,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:57:31,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1819009224, now seen corresponding path program 6 times [2024-10-11 19:57:31,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:57:31,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406208130] [2024-10-11 19:57:31,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:57:31,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:57:31,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:57:31,513 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:57:31,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:57:31,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406208130] [2024-10-11 19:57:31,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406208130] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:57:31,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:57:31,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 19:57:31,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460272792] [2024-10-11 19:57:31,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:57:31,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:57:31,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:57:31,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:57:31,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:57:31,531 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2024-10-11 19:57:31,532 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 114 transitions, 1221 flow. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:57:31,532 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:57:31,532 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2024-10-11 19:57:31,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:57:35,133 INFO L124 PetriNetUnfolderBase]: 29639/40477 cut-off events. [2024-10-11 19:57:35,133 INFO L125 PetriNetUnfolderBase]: For 192258/192704 co-relation queries the response was YES. [2024-10-11 19:57:35,272 INFO L83 FinitePrefix]: Finished finitePrefix Result has 179480 conditions, 40477 events. 29639/40477 cut-off events. For 192258/192704 co-relation queries the response was YES. Maximal size of possible extension queue 1673. Compared 246894 event pairs, 3418 based on Foata normal form. 384/40571 useless extension candidates. Maximal degree in co-relation 133991. Up to 16938 conditions per place. [2024-10-11 19:57:35,418 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 230 selfloop transitions, 35 changer transitions 12/290 dead transitions. [2024-10-11 19:57:35,418 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 290 transitions, 3388 flow [2024-10-11 19:57:35,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 19:57:35,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-11 19:57:35,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 182 transitions. [2024-10-11 19:57:35,419 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6190476190476191 [2024-10-11 19:57:35,419 INFO L175 Difference]: Start difference. First operand has 97 places, 114 transitions, 1221 flow. Second operand 7 states and 182 transitions. [2024-10-11 19:57:35,419 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 290 transitions, 3388 flow [2024-10-11 19:57:36,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 290 transitions, 3372 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 19:57:36,237 INFO L231 Difference]: Finished difference. Result has 106 places, 131 transitions, 1648 flow [2024-10-11 19:57:36,237 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=1207, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1648, PETRI_PLACES=106, PETRI_TRANSITIONS=131} [2024-10-11 19:57:36,237 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 60 predicate places. [2024-10-11 19:57:36,238 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 131 transitions, 1648 flow [2024-10-11 19:57:36,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:57:36,238 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:57:36,238 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:57:36,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-11 19:57:36,238 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-11 19:57:36,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:57:36,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1429848268, now seen corresponding path program 6 times [2024-10-11 19:57:36,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:57:36,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504763682] [2024-10-11 19:57:36,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:57:36,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:57:36,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:57:36,311 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:57:36,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:57:36,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504763682] [2024-10-11 19:57:36,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504763682] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:57:36,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:57:36,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 19:57:36,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610982128] [2024-10-11 19:57:36,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:57:36,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:57:36,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:57:36,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:57:36,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:57:36,327 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-10-11 19:57:36,327 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 131 transitions, 1648 flow. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:57:36,328 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:57:36,328 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-10-11 19:57:36,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:57:40,825 INFO L124 PetriNetUnfolderBase]: 36526/49120 cut-off events. [2024-10-11 19:57:40,826 INFO L125 PetriNetUnfolderBase]: For 269218/270034 co-relation queries the response was YES. [2024-10-11 19:57:41,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 217470 conditions, 49120 events. 36526/49120 cut-off events. For 269218/270034 co-relation queries the response was YES. Maximal size of possible extension queue 1741. Compared 289423 event pairs, 8524 based on Foata normal form. 834/49892 useless extension candidates. Maximal degree in co-relation 161424. Up to 19959 conditions per place. [2024-10-11 19:57:41,209 INFO L140 encePairwiseOnDemand]: 34/42 looper letters, 243 selfloop transitions, 36 changer transitions 0/285 dead transitions. [2024-10-11 19:57:41,210 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 285 transitions, 3517 flow [2024-10-11 19:57:41,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 19:57:41,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 19:57:41,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 162 transitions. [2024-10-11 19:57:41,211 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6428571428571429 [2024-10-11 19:57:41,211 INFO L175 Difference]: Start difference. First operand has 106 places, 131 transitions, 1648 flow. Second operand 6 states and 162 transitions. [2024-10-11 19:57:41,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 285 transitions, 3517 flow [2024-10-11 19:57:42,329 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 285 transitions, 3434 flow, removed 15 selfloop flow, removed 2 redundant places. [2024-10-11 19:57:42,332 INFO L231 Difference]: Finished difference. Result has 111 places, 136 transitions, 1786 flow [2024-10-11 19:57:42,332 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=1518, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1786, PETRI_PLACES=111, PETRI_TRANSITIONS=136} [2024-10-11 19:57:42,333 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 65 predicate places. [2024-10-11 19:57:42,333 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 136 transitions, 1786 flow [2024-10-11 19:57:42,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:57:42,333 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:57:42,333 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:57:42,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-11 19:57:42,333 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-11 19:57:42,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:57:42,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1670223886, now seen corresponding path program 7 times [2024-10-11 19:57:42,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:57:42,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042695963] [2024-10-11 19:57:42,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:57:42,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:57:42,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:57:42,397 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:57:42,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:57:42,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042695963] [2024-10-11 19:57:42,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042695963] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:57:42,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:57:42,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:57:42,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406903886] [2024-10-11 19:57:42,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:57:42,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:57:42,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:57:42,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:57:42,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:57:42,403 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-10-11 19:57:42,404 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 136 transitions, 1786 flow. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:57:42,404 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:57:42,404 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-10-11 19:57:42,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand